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ADS1120-Q1 bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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ADS1120-Q1 bảng dữ liệu(HTML) 1 Page - Texas Instruments |
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1 / 67 page  Low Drift Oscillator Reference Mux Precision Temp Sensor AIN0/REFP1 AIN1 AIN2 AIN3/REFN1 SCLK CS AVDD AVSS DOUT/DRDY DIN ADS1120-Q1 DRDY DGND REFP0 REFN0 Internal Reference CLK 50 A to 1.5 mA Mux DVDD PGA 16-bit ûADC Digital Filter and SPI Interface Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ADS1120-Q1 SBAS683A – AUGUST 2014 – REVISED OCTOBER 2014 ADS1120-Q1 Automotive, Low-Power, Low-Noise, 16-Bit, Analog-to-Digital Converter for Small-Signal Sensors 1 Features 3 Description The ADS1120-Q1 is a precision, 16-bit, analog-to- 1 • Qualified for Automotive Applications digital converter (ADC) that offers many integrated • AEC-Q100 Qualified with the Following Results: features to reduce system cost and component count – Temperature Grade 1: –40°C to +125°C in applications measuring small sensor signals. The device features two differential or four single-ended – HBM ESD Classification 2 inputs through a flexible input multiplexer (MUX), a – CDM ESD Classification C4B low-noise, programmable gain amplifier (PGA), two • Low Current Consumption: programmable excitation current sources, a voltage As Low as 120 μA (typ) in Duty-Cycle Mode reference, an oscillator, a low-side switch, and a precision temperature sensor. • Wide Supply Range: 2.3 V to 5.5 V • Programmable Gain: 1 V/V to 128 V/V The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle • Programmable Data Rates: 5 SPS to 2 kSPS settling. At 20 SPS, the digital filter offers • 16-Bit, Noise-Free Resolution at 20 SPS simultaneous 50-Hz and 60-Hz rejection for noisy • Simultaneous 50-Hz and 60-Hz Rejection at industrial applications. The internal PGA offers gains 20 SPS with Single-Cycle Settling Digital Filter up to 128 V/V. This PGA makes the ADS1120-Q1 ideally-suited for applications measuring small sensor • Two Differential or Four Single-Ended Inputs signals, such as resistance temperature detectors • Dual-Matched Programmable Current Sources: (RTDs), thermocouples, thermistors, and bridge 50 μA to 1.5 mA sensors. The device supports measurements of • Internal 2.048-V Reference: 5 ppm/°C (typ) Drift pseudo- or fully-differential signals when using the PGA. Alternatively, the device can be configured to • Internal 2% Accurate Oscillator bypass the internal PGA while still providing high • Internal Temperature Sensor: input impedance and gains up to 4 V/V, allowing for 0.5°C (typ) Accuracy single-ended measurements. • SPI™-Compatible Interface (Mode 1) Power consumption is as low as 120 µA when operating in duty-cycle mode with the PGA disabled. 2 Applications Communication to the device is established through a • Temperature Sensors: mode 1 SPI-compatible interface. The ADS1120-Q1 is offered in a TSSOP-16 package and is specified – Thermocouples over a temperature range of –40°C to +125°C. – Resistance Temperature Detectors (RTDs): 2-, 3-, or 4-Wire Types Device Information(1) • Bridge Sensors: PART NUMBER PACKAGE BODY SIZE (NOM) – Pressure Sensors ADS1120-Q1 TSSOP (16) 5.00 mm × 4.40 mm – Strain Gauges (1) For all available packages, see the orderable addendum at the end of the datasheet. • Battery Voltage Measurements 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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Mô tả tương tự - ADS1120-Q1 |
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